| id,time_col,varchar_time_col | |
| 1,15:20:30,15:20:30 | |
| 2,0:0:0,0:0:0 | |
| 3,23:59:59,23:59:59 | |
| 4,1:1:1,1:1:1 | |
| 5,01:01:01,01:01:01 | |
| 6,01:01:01,01:01:001 | |
| 7,01:01:01,01:001:001 | |
| 8,01:01:01,001:001:001 | |
| 9,1:1:1.1,1:1:1.1 | |
| 10,1:1:1.0,1:1:1.0 | |
| 11,1:1:10,1:1:10 | |
| 12,1:1:1.10,1:1:1.10 | |
| 13,1:1:1.999,1:1:1.999 | |
| 14,1:1:1.9999,1:1:1.9999 | |
| 15,1:1:1.999999,1:1:1.999999 | |
| 16,1:1:1.998999,1:1:1.998999 |